[PATCH v3 04/13] tty: serial: qcom-geni-serial: improve the to_dev_port() macro

Bartosz Golaszewski
2022-11-23T11:09:10Z

The member we want to resolve in struct qcom_geni_serial_port is called
uport so we don't need an additional redundant parameter in this macro.

While at it: turn the macro into a static inline function.

Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
---
drivers/tty/serial/qcom_geni_serial.c | 36 ++++++++++++++-------------
1 file changed, 19 insertions(+), 17 deletions(-)

diff --git a/drivers/tty/serial/qcom_geni_serial.c b/drivers/tty/serial/qcom_geni_serial.c
index 97ee7c074b79..e4139718e084 100644
--- a/drivers/tty/serial/qcom_geni_serial.c
+++ b/drivers/tty/serial/qcom_geni_serial.c
@@ -133,8 +133,10 @@ static const struct uart_ops qcom_geni_uart_pops;
static struct uart_driver qcom_geni_console_driver;
static struct uart_driver qcom_geni_uart_driver;

-#define to_dev_port(ptr, member) \
- container_of(ptr, struct qcom_geni_serial_port, member)
+static inline struct qcom_geni_serial_port *to_dev_port(struct uart_port *uport)
+{
+ return container_of(uport, struct qcom_geni_serial_port, uport);
+}

static struct qcom_geni_serial_port qcom_geni_uart_ports[GENI_UART_PORTS] = {
[0] = {
@@ -175,7 +177,7 @@ static struct qcom_geni_serial_port qcom_geni_console_port = {
static int qcom_geni_serial_request_port(struct uart_port *uport)
{
struct platform_device *pdev = to_platform_device(uport->dev);
- struct qcom_geni_serial_port *port = to_dev_port(uport, uport);
+ struct qcom_geni_serial_port *port = to_dev_port(uport);

uport->membase = devm_platform_ioremap_resource(pdev, 0);
if (IS_ERR(uport->membase))
@@ -212,7 +214,7 @@ static void qcom_geni_serial_set_mctrl(struct uart_port *uport,
unsigned int mctrl)
{
u32 uart_manual_rfr = 0;
- struct qcom_geni_serial_port *port = to_dev_port(uport, uport);
+ struct qcom_geni_serial_port *port = to_dev_port(uport);

if (uart_console(uport))
return;
@@ -253,7 +255,7 @@ static bool qcom_geni_serial_poll_bit(struct uart_port *uport,
struct qcom_geni_private_data *private_data = uport->private_data;

if (private_data->drv) {
- port = to_dev_port(uport, uport);
+ port = to_dev_port(uport);
baud = port->baud;
if (!baud)
baud = 115200;
@@ -506,7 +508,7 @@ static int handle_rx_console(struct uart_port *uport, u32 bytes, bool drop)
u32 i;
unsigned char buf[sizeof(u32)];
struct tty_port *tport;
- struct qcom_geni_serial_port *port = to_dev_port(uport, uport);
+ struct qcom_geni_serial_port *port = to_dev_port(uport);

tport = &uport->state->port;
for (i = 0; i < bytes; ) {
@@ -549,7 +551,7 @@ static int handle_rx_console(struct uart_port *uport, u32 bytes, bool drop)
static int handle_rx_uart(struct uart_port *uport, u32 bytes, bool drop)
{
struct tty_port *tport;
- struct qcom_geni_serial_port *port = to_dev_port(uport, uport);
+ struct qcom_geni_serial_port *port = to_dev_port(uport);
u32 num_bytes_pw = port->tx_fifo_width / BITS_PER_BYTE;
u32 words = ALIGN(bytes, num_bytes_pw) / num_bytes_pw;
int ret;
@@ -598,7 +600,7 @@ static void qcom_geni_serial_stop_tx(struct uart_port *uport)
{
u32 irq_en;
u32 status;
- struct qcom_geni_serial_port *port = to_dev_port(uport, uport);
+ struct qcom_geni_serial_port *port = to_dev_port(uport);

irq_en = readl(uport->membase + SE_GENI_M_IRQ_EN);
irq_en &= ~(M_CMD_DONE_EN | M_TX_FIFO_WATERMARK_EN);
@@ -627,7 +629,7 @@ static void qcom_geni_serial_handle_rx(struct uart_port *uport, bool drop)
u32 last_word_byte_cnt;
u32 last_word_partial;
u32 total_bytes;
- struct qcom_geni_serial_port *port = to_dev_port(uport, uport);
+ struct qcom_geni_serial_port *port = to_dev_port(uport);

status = readl(uport->membase + SE_GENI_RX_FIFO_STATUS);
word_cnt = status & RX_FIFO_WC_MSK;
@@ -649,7 +651,7 @@ static void qcom_geni_serial_stop_rx(struct uart_port *uport)
{
u32 irq_en;
u32 status;
- struct qcom_geni_serial_port *port = to_dev_port(uport, uport);
+ struct qcom_geni_serial_port *port = to_dev_port(uport);
u32 s_irq_status;

irq_en = readl(uport->membase + SE_GENI_S_IRQ_EN);
@@ -687,7 +689,7 @@ static void qcom_geni_serial_start_rx(struct uart_port *uport)
{
u32 irq_en;
u32 status;
- struct qcom_geni_serial_port *port = to_dev_port(uport, uport);
+ struct qcom_geni_serial_port *port = to_dev_port(uport);

status = readl(uport->membase + SE_GENI_STATUS);
if (status & S_GENI_CMD_ACTIVE)
@@ -707,7 +709,7 @@ static void qcom_geni_serial_start_rx(struct uart_port *uport)
static void qcom_geni_serial_handle_tx(struct uart_port *uport, bool done,
bool active)
{
- struct qcom_geni_serial_port *port = to_dev_port(uport, uport);
+ struct qcom_geni_serial_port *port = to_dev_port(uport);
struct circ_buf *xmit = &uport->state->xmit;
size_t avail;
size_t remaining;
@@ -803,7 +805,7 @@ static irqreturn_t qcom_geni_serial_isr(int isr, void *dev)
struct uart_port *uport = dev;
bool drop_rx = false;
struct tty_port *tport = &uport->state->port;
- struct qcom_geni_serial_port *port = to_dev_port(uport, uport);
+ struct qcom_geni_serial_port *port = to_dev_port(uport);

if (uport->suspended)
return IRQ_NONE;
@@ -869,7 +871,7 @@ static void qcom_geni_serial_shutdown(struct uart_port *uport)

static int qcom_geni_serial_port_setup(struct uart_port *uport)
{
- struct qcom_geni_serial_port *port = to_dev_port(uport, uport);
+ struct qcom_geni_serial_port *port = to_dev_port(uport);
u32 rxstale = DEFAULT_BITS_PER_CHAR * STALE_TIMEOUT;
u32 proto;
u32 pin_swap;
@@ -917,7 +919,7 @@ static int qcom_geni_serial_port_setup(struct uart_port *uport)
static int qcom_geni_serial_startup(struct uart_port *uport)
{
int ret;
- struct qcom_geni_serial_port *port = to_dev_port(uport, uport);
+ struct qcom_geni_serial_port *port = to_dev_port(uport);

if (!port->setup) {
ret = qcom_geni_serial_port_setup(uport);
@@ -1003,7 +1005,7 @@ static void qcom_geni_serial_set_termios(struct uart_port *uport,
u32 stop_bit_len;
unsigned int clk_div;
u32 ser_clk_cfg;
- struct qcom_geni_serial_port *port = to_dev_port(uport, uport);
+ struct qcom_geni_serial_port *port = to_dev_port(uport);
unsigned long clk_rate;
u32 ver, sampling_rate;
unsigned int avg_bw_core;
@@ -1288,7 +1290,7 @@ static struct uart_driver qcom_geni_uart_driver = {
static void qcom_geni_serial_pm(struct uart_port *uport,
unsigned int new_state, unsigned int old_state)
{
- struct qcom_geni_serial_port *port = to_dev_port(uport, uport);
+ struct qcom_geni_serial_port *port = to_dev_port(uport);

/* If we've never been called, treat it as off */
if (old_state == UART_PM_STATE_UNDEFINED)
--
2.37.2